GMC THIRD BRAKE LIGHT WIRING

Is there a third brake light wire for a cap? | Chevy Truck
Jun 03, 2012My Dodge had a stubbed wire for a third brake light in a cap/camper shell sticking out of the main wiring harness. I think I have read that GM also has this, but I cannot find where I read that. I'm mounting lights on my toolbox, one of which is a tail/brake light bar (no turn signals).
SilveradoSierra • Wiring truck cap 3rd brake light
-third I added a ring terminal and grounded the light behind the taillight.-4th I extended the power wire and ran it in a loom under the bed following the same path as the taillight harness.-here is the tricky part as I didn't want to splice into the factory harness and do
1999-2006 Chevy Silverado Third Brake Light Wiring Source
The main trailer wiring harness is located under the truck bed, usually above the spare tire. There is usually a socket for your trailer connector to plug into, but if you peel back the wire loom you will find a light blue wire further up in the wiring harness that is intended for use for a third brake 4.9/5(260)
Wiring Third Brake Light on Camper Shell | Chevy Truck
Apr 18, 2011ok I have been searching for the answer to the same question, I just got a leer shell and I wanted to hook up the brake light, but the brake lights on my truck are also turn signals, so I'm looking for the right wire but no luck, not even in the trailer wiring 'cause they are brake/turn also
I need a wiring schematic for the 3rd brake light for a 99
Feb 25, 2013I need a wiring schematic for the 3rd brake light for a 99 GMC Sierra 1500 4x4 5.3 Litre. I can see the wires on the back of the 3rd brake light but I dont know where they are going. They are Blue/White, Light Blue, Brown and Black.
SilveradoSierra • Wiring truck cap 3rd brake light
Jan 19, 2016Tapping into your trailer wiring or a tail light definitely isnt the right way to wire a 3rd brake light wire. Those get wired into your CHMSL wire. If you cant find that, just ask. I install toppers, truck accessories, crap, all day. Its what i do for a living.
Finding the Third Brake Light Wire on a 2013 GMC Sierra
Finding the Third Brake Light Wire on a 2013 GMC Sierra 2500HD for a Camper Shell Finding the Third Brake Light Wire on a 2013 GMC Sierra 2500HD for a Camper Shell. Question: I am trying to locate the exact location of the wire provided to add a third brake light to a 2013 gmc sierra 2500 hd.
GMC Custom & Factory Style 3rd Brake Lights - CARiD
LED 3rd Brake Light by Replace®. You need your 3rd brake lights to be functional for safe driving, so your vehicle and brake lights can be seen by other drivers. Don't drive with a damaged or non-functional 3rd brake light and endanger..
2011 GMC Sierra 3rd Brake Lights - CARiD
GMC Sierra 2011, Chrome/Platinum Smoke Mega LED 3rd Brake Light by IPCW®. Chrome housing, platinum smoke lens. With cargo lights. Much wider if compared to the standard 3rd brake light, this great part spans the whole roof line and thus..
L.e.d. Third Brake Light Wiring - 1999-2013 Silverado
Dec 08, 2010Hi. I have an 00' Sierra single cab and i just got a set of projector headlights, bumper lights, tailights and third brake light. everything wen it fine excpet for the third brake light. I pulled out the stock one, undid the harness and got to looking. My new l.e.d 3rd light has 4 wires coming from it(2 power and 2 ground).